Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add skills/jonathimer/devmarketing-skills/developer-lead-gennpx skills add jonathimer/devmarketing-skills --skill developer-lead-gengit clone --depth 1 https://github.com/jonathimer/devmarketing-skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/jonathimer/devmarketing-skills/developer-lead-gen)<a href="https://agentmods.dev/skills/jonathimer/devmarketing-skills/developer-lead-gen"><img src="https://agentmods.dev/badge/skills/jonathimer/devmarketing-skills/developer-lead-gen.svg" alt="Measured on agentmods" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00097 | $0.02202 |
| Opus 5 | $0.00048 | $0.01101 |
| Sonnet 5 | $0.00019 | $0.00440 |
| Haiku 4.5 | $0.00010 | $0.00220 |
Grade A, and why
developer-lead-gen scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 5d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 365 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Developer Lead Generation
Overview
Traditional lead generation tactics fail with developers. Gating content behind forms generates resentment, not qualified leads. Developers have finely-tuned spam detectors and share warnings about pushy tools in their communities.
Effective developer lead gen focuses on providing genuine value upfront—free tools, useful utilities, and ungated resources that solve real problems. Conversion happens when developers recognize the value and choose to engage, not when they're forced through a funnel.
Why Traditional Lead Gen Fails with Developers
What Developers Reject
Form-gated content:
- PDFs that could be blog posts
- "Ebooks" that are product pitches
- Whitepapers with no original research
- Webinar recordings hidden behind forms
Aggressive tactics:
- Chatbots that appear immediately
- Exit-intent popups
- Required email for documentation
- Forced account creation for trials
Fake value:
- "Free" tools that require signup to use
- Calculators that email results
- Generic content disguised as resources
Why It Fails
- Developers talk: One bad experience gets shared in Slack channels, Twitter, and Hacker News
- Temporary emails: Developers use disposable addresses for forms
- Ad blockers: Many developers block tracking and popups
- Time protection: Developers guard their attention fiercely
- Trust loss: Pushy tactics damage brand perception permanently
Building Free Tools That Generate Leads
Tool Ideas That Attract Developers
Effective developer tools solve specific, frequent problems:
Format converters:
- JSON to YAML (and vice versa)
- Timestamp converters
- Base64 encode/decode
- Markdown to HTML
Generators:
- UUID generators
- Password/secret generators
- Regex builders and testers
- Cron expression builders
- .gitignore generators
Validators/linters:
- JSON validators
- YAML validators
- SQL formatters
- Code formatters
Calculators:
- Unix timestamp calculators
- Color converters (hex to RGB)
- Byte size converters
- Rate limit calculators
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 5d ago First seen · 365 lines · 97 tokens per session scan A f01487b91620
developer-lead-gen is a skill published in the GitHub repository jonathimer/devmarketing-skills (86 stars, last pushed 6mo ago), licensed MIT. It adds 97 tokens to every session and 2,202 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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